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Mercury in galvanize sheet metals

Our company builds UPS and using certain types of metal. I just want to know if the galvanized sheet metals or Cold rolled steel contains mercury? thanks,

Jeff Alinas
Consumer Products - Philippines
2006

Mercury has a boiling point of about 357 °C. Galvanizing takes place at about 450C, hence any Hg (mercury) in the zinc would vaporize from the zinc kettle. Its not normal therefore to find and in Galvanizing.
Hot and cold rolled steel are formed from ingots, billets or blooms of steel cast from temperatures of about 1750C, rolled at about 800C both much higher than the vaporizing temp of Hg, so hot rolled galv. steel, cold rolled galv. steel do not normally contain Hg.

Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK

2006

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